Solution Concentration Calculation

00:00 1 marks

What is the concentration, in mol dm⁻³, of a solution formed when 14.2 g of sodium sulfate, Na₂SO₄, is dissolved in water to make 250 cm³ of solution? (Mr(Na₂SO₄) = 142.04)

A

0.100
B

0.200
C

0.400
D

1.00

Hint Hint

Hint

First, calculate the moles of Na₂SO₄. Then, convert the volume to dm³. Finally, use the formula: Concentration = moles / volume.

Answer Answer
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Answer Answer

Complete Answer

0.400

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

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